Vending machines(自动售货机)sell many different kinds of things. Some of them sell cold drinks like coke or orange juice, or hot drinks like coffee or tea. Others sell sweets, stamps, tickets, newspapers, and other small things. In some cities, vending machines are even used to sell a lot of hot meals. These machines have been welcomed for two reasons. They save(节省)time and they are convenient(方便的). Things sold in vending machines need no shop assistant or cashier. In many places people can use the machines at any time of day or night, and they can find vending machines everywhere. Although there are many different sizes and kinds of vending machines, they all work in nearly the same way. People put money into the machine and then open a door to receive what they buy. Some machines will also return change to the people, and a few will even give change to paper notes. But the idea is the same. People like to save time and are usually willing to pay a higher price for this convenience.

单选题 Many vending machines are used in China.

单选题 Vending machines can be found only in very large cities.

【正确答案】 C

【答案解析】解析：句意：只能在很大的城市中找到自动售货机。是非题。文章只提到some cities和in many places，但没有具体说明地方和城市的大小，所以答案为C。

单选题 In some places the machines work 24 hours a day.

【正确答案】 A

【答案解析】解析：句意：有的地方售货机一天24小时工作。是非题。从原文第二段倒数第一句“In many places people can use the ma一chines at any time of day or night，”可知本题所述与原文相符。

单选题 Vending machines don't accept paper notes.

【正确答案】 B

【答案解析】解析：句意：自动售货机不接收纸币。是非题。从原文最后一段倒数第三句“and a few will even give change to paper notes．”可知有的售货机甚至给纸币找零钱，从而推断有的售货机可以接受纸币，所以此题所述与原文不符，应选B。

单选题 The things sold in vending machines are usually more expensive.

【正确答案】 A

【答案解析】解析：句意：自动售货机出售的东西通常要贵一些。是非题。从原文最后一段最后一句“People like to save time and are usually willing to pay a higher price for this convenience．”可知此题所述与原文相符。